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June 2013 p41 q4
3465
A train of mass 400,000 kg is moving on a straight horizontal track. The power of the engine is constant and equal to 1500 kW and the resistance to the train’s motion is 30,000 N. Find
- the acceleration of the train when its speed is 37.5 m s-1,
- the steady speed at which the train can move.
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